Carton



Patented Oct. 16, 1934 UNITED STATES CARTON Martin Burger, Morris, 11].,asaignor to Self- Locking Carton (70., Chicago, 111., a corporation ofIllinois Application September 20, 1932, set-in No. 634,840

IClaim.

The present invention relates to cartons of the cellular type and hasparticular reference to immovements by which the utility of egg'cartonsof the so-called cushion type is facilitated.

The cushion. style cartons, such as disclosed in Troyk Patent No.1,766,155, generally are formed of a single blank properly cut, scoredand folded to form front and rear walls, partition sections between thewalls and bottom sections which are inclined in order to space theegg-carrying section from a'surface upon which the carton is resting,and thereby to prevent br. In certain instances, only the centralportion of the bottom section is of inverted V-shape, the outer portionsof the bottom sections being turned upwardly so that the entire bottomsection is of substantially W-shape.

The principal object of the present invention is to provide a cushionstyle carton which is of stable structure and which affordsaddedprotection to the bottom of the carton.

This and other objects will become apparent from the followingspecifications with reference 'to the accompanying drawing, in whichFig. 1 is a perspective view of a carton havmg a W-shaped bottom andconstructed in accordance with my invention;

Fig. 2 is a sectional view taken along line 2-2 of Fig. 1;

Fig. 3 is a sectional view of a cushion style carton having a bottomsection of substantially inverted V-shape and constructed in accordancewith my invention;

Fig. 9! is a sectional view taken along line 4-4 Fig. 5 is a fragmentarysectional view similar to Fig.4 and showing a modified form of myinvention. I

In the carton disclosed in Figs. 1 and 2 a sin-i gle blank of paper orothersuitable material is properly cut, scored and folded to form, inthe order namedkatop section 1, a rear wall 2, a bottom and longitudinalpartition-forming sec- ,tion of W-shape and composed of a reardownweirdly sloping section'3, a rear upwardly. sloping section 4, arear longitudinal partition section 5, a front longitudinal partitionsection 6,a front downwardly sloping section '7, a front upwardlysloping section 8, a front wall 9. cross partitions 10, and an attachingstrip The cross partitions 10 are provided with slots 12 extendingdownwardly from the central portion of their upper edge, as shown inFig. 2. The longitudinal partition sections are s me toreceivethetransverseorcrosspartitionsandotthe of these slots is providedhook portions 13 w h ense the shoulders. on the cross partitions formedby the slots '12, thereby maintaining the carbon in erect condition andsuspending the bottom section above a surface upon which the cartonisplaced. It will be noted that the carton rests upon the score linesbetween sec-tions3 and 4 on the rear side of the carton and between thesections 7 and don the front side ofthe carton.

From the lines of contact with the surface upon 55 which the carton ispositioned the bottom sections extend upwardly at an inclination of subrstantially 45. The top of the carton is pivoted to the rear wall and hasa plurality-of slots 14, along its free edge which are of keyhole forma-79 tion and provide means for locking the cover in closed condition. Thecross partitions 10 are integralwiththetriangularhingedpmtions 16 andthese hinged portions are integral with the front and rear walls,thereby providing means where: 7 by the cross partitions may be rotatedfrom their collapsed horizontal position into the erect position shownin the drawing.

. The distance between the two lines of contact of the bottom of thecarton with the surface upon 59 which the carton is positioned issubstantially less than the width of the carton and cartons of this typehave had the objection heretofore of being easily rotated and upset,which has resulted in breakage of eggs held in the carton. 35 Also, whenforce is exerted on the top of the carton the front and rear wallsspread outwardly along the scoring between sections8 and 9 on the frontwall and sections 2 and 3 on the rear wall.

In, accordance with the present invention a plurality of projections 17.are provided on the front and rear walls and extend downwardly in theplane of these walls to a point adjacent the lowest portion of thecarton whereby the carton is supported along four lines instead of alongthe two somewhat closely spaced lines as heretofore. Downwardprojections have been provided on cartons of the prior art, J forexample, on Carter Patent No. 927,448, but in such cases the projections.were employed as cushioning means. In the present case the bottomsection of the carton is employed as cushioning means and the downwardprojections perform additional functions. When force is applied to thetop of the cartons, shown in Figs. 1 and 2, the walls cannot spreadoutwardly and cause breakage, due to the contact of the projection 1'1with the surface upon which the carton is positioned; also, theprojections; being widely spaced, prevent rotation of the car:- ton. Inaddition to the downward projections .17 u.

on the front and rear walls there is provided a series of similarprojections 13 which extend downwardly from the longitudinal partitionsections, as shown in Fig. 2. It is'preferred that the projections 17and 18 be in somewhat staggered relation.

In order to form the projections 17 and 18 the blank from which thecarton is formed is cut so that the projections are taken from theadjacent downwardly sloping bottom sections. When the box is incollapsed condition these projections or'legs 1'7 and 18 are in the.plane of the sections from which they are struck, but when the cartonis erected and the bottom sections are placed in the position shown inFig. 2 the projections remain in the plane of the wall structure towhich they are attached, the longitudinal partition sections beingconsidered as wall structures in this respect, and as there is noscoring between the projection and the walls to which they are attachedthe projections provide a rigid supporting means.

In the embodiment of my invention, shown in Figs. 3 and 4, a carton isproduced by suitably cutting, scoring and folding a blank of paper toform a cover locking strip 19, top 2Q, rear wall 21, rear bottom section22, rear longitudinal partition section 23, front longitudinal partitionsection 24, front bottom section 25, front wall 26,

,' transverse partition sections 27, and an attaching strip 28 which isfolded over and secured to the rear wall 21. The top section is joinedto the rear wall by an-inclined section 29 and the top is secured to thecover locking strip by a similar .inclined section 30, whereby whenthecover is closed by engaging the hooks 31 on the free edge.

of the cover locking strip beneath the triangular hinges 32 by which thecross partitions are secured to the front and rear wall, the box has theappearance of having its upper edges beveled, as shown in Fig. 3.

This beveled edge is of particular importance in that it allows thecartons to be stacked one upon and the-latter are provided with a seriesof slots 33, as shown in Fig. 4, which receive the transverse or crosspartitions 27. Extending outwardly into the slots are hooks 34 whichengage the shoulders formed by the openings or windows 35 in the crosspartitions. The bottom is thereby drawn 'upward in substantially.inverted V-shape and suspended to the cross partitions. It will be notedthat the longitudinal partition sections 23 and 24 are substantiallyvertical while the inclined bottom sections 22 and 25 are inclined moretoward the horizontal. In the cartons of this type and known heretoforeit has been possible for projections to be thrust upwardly alongthe-center of the bottom section to the damage of eggs held in thecarton. In accordance with'the pres-. cut invention downward projections36 extend from the longitudinal partition sections toward the leveladjacent. the bottom of the carton.

In the modification shown in the drawing the projections 36 do notextend to the level of the bottom of the carton. The purpose of this isthat when one carton is positioned above another the beveled edges pressthe bottom sections 22 and 25 upwardly. However, the projections 36 ofthe one carton engage the top 20 of the next lower carton and therebyprevent the top of the lower carton from being pressed up too far. It isdesirable that the projections 36 be of such length that they contactthe top 20 of the carton simultaneously with the contact of the sections22 and 25 with the beveled edges 29 and 30, respectively.

To provide the projections 36 the blank from which the carton isproduced is cut so that these projections are struck from the sections22 and 25. Since the'pro'jections are not scored along the line of theirattachment to the longitudinal partition sections the projections-ottera stable support for the protection of the carton and eggs held therein.I

In the modified form or my invention shown in Fig. 5, the blank fromwhich the carton is produced iscut in such a manner as to locate theprojections or legs 36 immediately adjacent the cross partitions, ratherthan intermediate the cross partitions, as in Fig. 4. By providing theprojections adjacent the cross partition, a better suspension of thebottom section is had. Also, the central portions of the cells, uponwhich the eggs rest, do not have sharp edges of cardboard, resultingfromthe cutting out of the projections,

which edges tend to cut through the egg shells.

The specific structures shown in the drawing havebeen described forpurpose of illustration and explanation, and are not to be takenas'limiting my invention beyond the scope of the appended claim.

I claim:

A carton of the type described comprising front and rear walls, a bottomsection having its central portion in the shape of an inverted V,substantially vertical longitudinal partition sections connected totheinner portion of said bottom section, cross partitions, releasablehooks and shoulders on said longitudinal partition sections and saidcross partitions, and projections on said longitudinal partitionsections extending downwardly in the plane thereof, said projectionsbeing cut-from the material of the inclined bottom section and joiningthe longitudinal partition sections along a line between thelongitudinal partition sections and the bottom section.

MARTIN BURGER.

